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19-3179; Rev 0; 1/04
17________________________________
MAX6964 I2CTM 1750mA . 8 7V LED . PWM LED 14 4. . 4. 7V .
LED /GPO
MAX6964
________________________________
400kbps, 2 2V~3.6V 816 16 2 RST 7V (1.2A ( 4mm x 4mm, 0.8mm ) 3.3A ( QFN )) LED -- 50mA ( ) PWM LED , 5.5V
16 8 . . LED . LED (GPI) MAX6964 I2C 2I2C . . BLINK . BLINK
( 1kHz)
-40C~+125C
________________________________
,4
PART MAX6964ATG MAX6964AEG TEMP RANGE -40C to +125C -40C to +125C PIN-PACKAGE 24 Thin QFN 4mm x 4mm x 0.8mm 24 QSOP
________________________________
LCD LED RGB LED
________________________
7V
3.3V
_________________________________
SDA AD0 V+ SCL RST O16
TOP VIEW
0.047F V+ SDA SCL BLINK RST O0 O1 O2 O3 O4 O5 O6 O7 O8 O9 O10 O11 O12 O13 RELAY 5V 3.3V 6V RELAY RELAY OUTPUT
C SDA SCL I/O
24 O0 1 O1 2 O2 3
23
22
21
20
19 18 BLINK 17 O15 16 O14
I/O
MAX6964
AD0
MAX6964
O3 4 O4 5 O5 6 7 8 9 10 11 12 15 O13 14 O12 13 O11
GND
O14 O15 O16
OUTPUT
O6
O7
GND
O8
O9
O10
QFN
Maxim Integrated Products I 2C . I 2C .
I 2C I 2C
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
17/GPO
MAX6964
LED
Continuous Power Dissipation (TA = +70C) 24-Pin QSOP (derate 9.5mW/C over +70C)..............761mW 24-Pin QFN (derate 20.8mW/C over +70C) ............1666mW Operating Temperature Range .........................-40C to +125C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C
ABSOLUTE MAXIMUM RATINGS
Voltage (with respect to GND) V+ .............................................................................-0.3V to +4V SCL, SDA, AD0, BLINK, RST ...................................-0.3V to +6V O0-O16 ....................................................................-0.3V to +8V DC Current on O0 to O16 ...................................................55mA DC Current on SDA.............................................................10mA Maximum GND Current ....................................................350mA
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Typical Operating Circuit, V+ = 2V to 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = 3.3V, TA = +25C.) (Note 1)
PARAMETER Operating Supply Voltage Output Load External Supply Voltage Standby Current (Interface Idle, PWM Disabled) SYMBOL V+ VEXT SCL and SDA at V+; other digital inputs at V+ or GND; PWM intensity control disabled SCL and SDA at V+; other digital inputs at V+ or GND; PWM intensity control disabled fSCL = 400kHz; other digital inputs at V+ or GND; PWM intensity control enabled fSCL = 400kHz; other digital inputs at V+ or GND; PWM intensity control enabled TA = +25C TA = -40C to +85C TA = TMIN to TMAX TA = +25C TA = -40C to +85C TA = TMIN to TMAX TA = +25C TA = -40C to +85C TA = TMIN to TMAX TA = +25C TA = -40C to +85C TA = TMIN to TMAX 0.7 x V+ 0.3 x V+ 0 input voltage 5.5V -0.2 8 +0.2 57 50 8.5 CONDITIONS MIN 2.0 0 1.2 TYP MAX 3.6 7 2.3 2.6 3.3 15.1 16.5 17.2 95.3 99.2 102.4 110.2 117.4 122.1 V V A pF A A A A UNITS V V
I+
Supply Current (Interface Idle, PWM Enabled) Supply Current (Interface Running, PWM Disabled) Supply Current (Interface Running, PWM Enabled) Input High Voltage SDA, SCL, AD0, BLINK, RST Input Low Voltage SDA, SCL, AD0, BLINK, RST Input Leakage Current SDA, SCL, AD0, BLINK, RST Input Capacitance SDA, SCL, AD0, BLINK, RST
I+
I+
I+
VIH VIL IIH, IIL
2
_______________________________________________________________________________________
17ELECTRICAL CHARACTERISTICS (continued)
LED /GPO
MAX6964
MAX 0.26 0.3 0.32 V UNITS
(Typical Operating Circuit, V+ = 2V to 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = 3.3V, TA= + 25C.) (Note 1)
PARAMETER SYMBOL CONDITIONS TA = +25C V+ = 2V, ISINK = 20mA TA = -40C to +85C TA = TMIN to TMAX Output Low Voltage O0-O16 TA = +25C VOL V+ = 2.5V, ISINK = 20mA TA = -40C to +85C TA = TMIN to TMAX TA = +25C V+ = 3.3V, ISINK = 20mA Output Low-Voltage SDA PWM Clock Frequency VOLSDA fPWM ISINK = 6mA 32 TA = -40C to +85C TA = TMIN to TMAX 0.12 0.13 MIN TYP 0.15
0.23 0.26 0.28 0.23 0.24 0.26 0.4 V kHz V V
TIMING CHARACTERISTICS
(Typical Operating Circuit, V+ = 2V to 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = 3.3V, TA = +25C.) (Note 1)
PARAMETER Serial Clock Frequency Bus Free Time Between a STOP and a START Condition Hold Time, Repeated START Condition Repeated START Condition Setup Time STOP Condition Setup Time Data Hold Time Data Setup Time SCL Clock Low Period SCL Clock High Period Rise Time of Both SDA and SCL Signals, Receiving Fall Time of Both SDA and SCL Signals, Receiving Fall Time of SDA Transmitting Pulse Width of Spike Suppressed SYMBOL fSCL tBUF tHD, STA tSU, STA tSU, STO tHD, DAT tSU, DAT tLOW tHIGH tR tF tF.TX tSP (Notes 3, 4) (Notes 3, 4) (Notes 3, 5) (Note 6) (Note 2) 180 1.3 0.7 20 + 0.1Cb 20 + 0.1Cb 20 + 0.1Cb 50 300 300 250 1.3 0.6 0.6 0.6 0.9 CONDITIONS MIN TYP MAX 400 UNITS kHz s s s s s ns s s ns ns ns ns
_______________________________________________________________________________________
3
17/GPO
MAX6964
LED
TIMING CHARACTERISTICS (continued)
(Typical Operating Circuit, V+ = 2V to 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = 3.3V, TA = +25C.) (Note 1)
PARAMETER Capacitive Load for Each Bus Line RST Pulse Width Output Data Valid SYMBOL Cb tW tDV Figure 10 (Note 3) 1 5 CONDITIONS MIN TYP MAX 400 UNITS pF ns ns
Note 1: All parameters tested at TA = +25C. Specifications over temperature are guaranteed by design. Note 2: A master device must provide a hold time of at least 300ns for the SDA signal (referred to VIL of the SCL signal) to bridge the undefined region of SCL's falling edge. Note 3: Guaranteed by design. Note 4: Cb = total capacitance of one bus line in pF. tR and tF measured between 0.3 x VDD and 0.7 x VDD. Note 5: ISINK 6mA. Cb = total capacitance of one bus line in pF. tR and tF measured between 0.3 x VDD and 0.7 x VDD. Note 6: Input filters on the SDA and SCL inputs suppress noise spikes less than 50ns.
___________________________________________________________________
(TA = +25C, unless otherwise noted.)
STANDBY CURRENT vs. TEMPERATURE
9 STANDBY CURRENT (A) 8 7 6 5 4 3 2 1 0 -40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (C) V+ = 2V PWM ENABLED V+ = 2.7V V+ = 3.6V PWM ENABLED PWM V+ = 2V V+ = 2.7V PWM DISABLED PWM DISABLED DISABLED V+ = 3.6V PWM ENABLED
MAX6964 toc01
SUPPLY CURRENT vs. TEMPERATURE (PWM DISABLED; fSCL = 400kHz)
MAX6964 toc02
SUPPLY CURRENT vs. TEMPERATURE (PWM ENABLED; fSCL = 400kHz)
70 65 60 55 50 45 40 35 30 25 20 15 10 5 0
MAX6964 toc03
10
70 60 SUPPLY CURRENT (A) 50 40 V+ = 2.7V 30 20 10 0 V+ = 2V V+ = 3.6V
SUPPLY CURRENT (A)
V+ = 3.6V
V+ = 2.7V V+ = 2V
-40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (C)
-40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (C)
PORT OUTPUT LOW VOLTAGE WITH 50mA LOAD CURRENT vs. TEMPERATURE
MAX6964 toc04
PORT OUTPUT LOW VOLTAGE WITH 20mA LOAD CURRENT vs. TEMPERATURE
MAX6964 toc05
PWM CLOCK FREQUENCY vs. TEMPERATURE
MAX6964 toc06
0.6 PORT OUTPUT LOW VOLTAGE VOL (V) 0.5 V+ = 2.7V 0.4 0.3 0.2 0.1 0 V+ = 3.6V V+ = 2V
0.6 PORT OUTPUT LOW VOLTAGE VOL (V) 0.5 0.4 0.3 0.2 0.1 0
ALL OUTPUTS LOADED
1.050 PWM CLOCK FREQUENCY (kHz) 1.025 1.000 0.975 V+ = 2.7V 0.950 0.925 0.900 NORMALIZED TO V+ = 3.3V, TA = 25C V+ = 3.6V
V+ = 2V
V+ = 2V
V+ = 2.7V
V+ = 3.6V
-40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (C)
-40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (C)
-40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (C)
4
_______________________________________________________________________________________
17______________________________________________________________
(TA = +25C, unless otherwise noted.)
SCOPE SHOT OF OUTPUT PORTS
MAX6964 toc07
LED /GPO
MAX6964
( )
SCOPE SHOT OF OUTPUT PORTS
MAX6964 toc08
SINK CURRENT vs. VOL
ONLY ONE OUTPUT LOADED OUTPUT 1 2V/div 0.30 0.25 VOL (V) 0.20 0.15 0.10 0.05 0 V+ = 2.7V V+ = 3.3V V+ = 3.6V V+ = 2V
MAX6964 toc09
MASTER INTENSITY SET TO 14/15 OUTPUT 1, 2V/div OUTPUT 1 INDIVIDUAL INTENSITY SET TO 1/16
MASTER INTENSITY SET TO 1/15
0.35
OUTPUT 1 INDIVIDUAL INTENSITY SET TO 1/16
OUTPUT 2, 2V/div OUTPUT 2 INDIVIDUAL INTENSITY SET TO 14/15 2ms/div OUTPUT 2 INDIVIDUAL INTENSITY SET TO 15/16 2ms/div
OUTPUT 2 2V/div
0
10
20
30
40
50
SINK CURRENT (mA)
_____________________________________________________________________________
QSOP 1, 4-11, 13-20 2 3 12 21 22 23 24 -- QFN 1-8, 10-17, 22 24 23 9 18 19 20 21 Pad O0-O16 RST AD0 GND BLINK SCL SDA V+ Exposed Pad
. 7V, 50mA . . 4 . GND . I2C I2C I/O . 0.047F . GND . 350mA 2. .
.
. GND, V+, SCL, SDA 1 . . .
V+
GND
.
_______________________________________________________________________________________
5
17/GPO
MAX6964
MAX6964 . MAX6964 MAX6964 ) (GPO) O0-O16 17 MAX6964 50mA 350mA 20mA . ( .
LED
) , I 2 C17 . . 17 1 , ( BLINK ( ) BLINK . 4). (GPI 16 4). ) 1 O16 ( 4). 2 ( 0
________________________________
LED
0 ( O0-O15 6). 1 ( 7). (BLINK 16 . PWM LED ( 8). PWM MAX6964
OUTPUT PORT REGISTER D Q FF WRITE PULSE CK Q Q2 GND
PWM
MAX6964 LED 32kHz PWM . PWM MAX6964
. 4( 11 12). 416 PWM 4. PWM PWM , ( 8 11). 240 4. 15/15 , 1/16
PWM PWM
OUTPUT PORT REGISTER DATA I/O PIN
DATA FROM SHIFT REGISTER
1/15
. 15/16
1.
I/O
SDA tSU,STA tHD,DAT tHIGH tBUF tHD,STA tSU,STO
tLOW
tSU,DAT
SCL tHD,STA tR START CONDITION
tF REPEATED START CONDITION STOP CONDITION START CONDITION
2.
2-
6
_______________________________________________________________________________________
17RAM
MAX6964 RST ( 3). (SDA) (idle) MAX6964 PWM . (active) I2C MAX6964 . PWM PWM . ( 2). . SDA . 2SCL
SDA
LED /GPO
MAX6964
__________________________
MAX6964 I2C 2. (SCL) . ) SCL MAX6964 SDA 4.7k SCL . ( MAX6964 3), R/W , . , MAX6964 (
2 RAM
, ( 2). 0xFF
4.7k
SCL
S
P STOP CONDITION
7 ,1
START CONDITION
(
3)
3.
SDA
SCL SDA SCL START(S) SDA . ( 3).
DATA LINE STABLE; CHANGE OF DATA DATA VALID ALLOWED
. SDA .
SCL STOP(P)
SCL
4.
CLOCK PULSE FOR ACKNOWLEDGE 1 2 8 9
SDL
START CONDITION SCL
. SDA 4). (
9 ( 9 . 9 SDA . 5).
SDA BY TRANSMITTER SDA BY RECEIVER S
SDA MAX6964
5.
SDA
A6 MSB
1
0
0
A2
0
0 LSB
R/W
ACK
SCL
6.
_______________________________________________________________________________________
7
17/GPO
MAX6964
1. MAX6964
PIN AD0 SCL SDA GND V+
LED
DEVICE ADDRESS
A6 1 1 0 0
A5 1 1 1 1
A4 0 0 0 0
A3 0 0 0 0
A2 0 1 0 1
A1 0 0 0 0
A0 0 0 0 0
2.
REGISTER Blink phase 0 outputs O7-O0 Blink phase 0 outputs O15-O8 User RAM0 User RAM1 Blink phase 1 outputs O7-O0 Blink phase 1 outputs O15-O8 Master and global/O16 intensity Configuration Outputs intensity O1, O0 Outputs intensity O3, O2 Outputs intensity O5, O4 Outputs intensity O7, O6 Outputs intensity O9, O8 Outputs intensity O11, O10 Outputs intensity O13, O12 Outputs intensity O15, O14 ADDRESS CODE (hex) 0x02 0x03 0x06 0x07 0x0A 0x0B 0x0E 0x0F 0x10 0x11 0x12 0x13 0x14 0x15 0x16 0x17 AUTOINCREMENT ADDRESS 0x03 0x02 0x07 0x06 0x0B 0x0A -- -- 0x11 0x12 0x13 0x14 0x15 0x16 0x17 0x10
. MAX6964 . .
4
MAX6964
MAX6964
MAX6964 6). 7. (A0) A6 A2 AD0 GND, V+, SDA, MAX6964 4 MAX6964 6 (A1), 2 (A5), 3 (A4), 4 (A3), 1, 0, 0, 0, 0 . AD0 . SCL . ( 1). ( MAX6964 . . 2). 78 R/ W , R/W ( . MAX6964 0 . R/W , MAX6964 1 . MAX6964
8
_______________________________________________________________________________________
17COMMAND BYTE IS STORED ON RECEIPT OF STOP CONDITION ACKNOWLEDGE FROM MAX6964 S SLAVE ADDRESS R/W 0 A D15 D14 D13 D12 D11 D10 D9 D8
LED /GPO
MAX6964
COMMAND BYTE ACKNOWLEDGE FROM MAX6964
A
P
7.
ACKNOWLEDGE FROM MAX6964 HOW COMMAND BYTE AND DATA BYTE MAP INTO MAX6964's REGISTERS ACKNOWLEDGE FROM MAX6964 S SLAVE ADDRESS R/W 0 A COMMAND BYTE A DATA BYTE 1 BYTE AUTOINCREMENT MEMORY ADDRESS A P D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 ACKNOWLEDGE FROM MAX6964 D5 D4 D3 D2 D1 D0
8.
ACKNOWLEDGE FROM MAX6964 HOW COMMAND BYTE AND DATA BYTE MAP INTO MAX6964's REGISTERS ACKNOWLEDGE FROM MAX6964 S SLAVE ADDRESS R/W 0 A COMMAND BYTE A DATA BYTE N BYTE AUTOINCREMENT MEMORY ADDRESS A P D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 ACKNOWLEDGE FROM MAX6964 D5 D4 D3 D2 D1 D0
9. n
WRITE TO OUTPUT PORTS REGISTERS (BLINK PHASE 0 REGISTERS/BLINK PHASE 1 REGISTERS) SCL 1 2 3 4 5 6 7 8 0 9 COMMAND BYTE A 0 0 0 0 0 0 0 1 A MSB DATA1 LSB A MSB DATA2 LSB A P
SLAVE ADDRESS SDA S A6 A5 A4 A3 A2 A1 A0
START CONDITION O7-O0
R/W ACKNOWLEDGE FROM SLAVE
ACKNOWLEDGE FROM SLAVE
ACKNOWLEDGE FROM SLAVE DATA1 VALID tDV
STOP CONDITION
O15- O8 tDV
DATA2 VALID
10.
MAX6964
(
8). MAX6964 MAX6964 ( 2).
9
MAX6964 ( 1 ) 0 10
(
2). .
.
_______________________________________________________________________________________
17/GPO
MAX6964
MAX6964
LED
( MAX6964 7). n ) B) ( 0 . ( 4). 1 (BLINK
. read-after-writer ( 2).
MAX6964 MAX6964
2MAX6964 ( 2). 0 .
LED 1 0xFF LED BLINK LED . E ( 4). BLINK 0 ( 11 4). 0 . BLINK ( 4). BLINK . BLINK 4).
. BLINK
1 .
MAX6964 2 2 1 .
PWM
MAX6964
EXOR 1 5). E
,
MAX6964 ( 2).
( RST RST ( 3). START . MAX6964 MAX6964 . (GPI)
________________________________
( RST MAX6964 ( ) . RST LED ( . . PWM , O16 ( 4). , BLINK 17 16 . . O16 2 ) PWM ( 7). , ( 3). (O0-O15) 1 . 0 (
GPI E
16 6).
,
10
______________________________________________________________________________________
173.
REGISTER FUNCTION Blink phase 0 outputs O7-O0 Blink phase 0 outputs O15-O8 User RAM0 User RAM1 Blink phase 1 outputs O7-O0 Blink phase 1 outputs O15-O8 Master and global/O16 intensity Configuration Outputs intensity O1, O0 Outputs intensity O3, O2 Outputs intensity O5, O4 Outputs intensity O7, O6 Outputs intensity O9, O8 Outputs intensity O11, O10 Outputs intensity O13, O12 Outputs intensity O15, O14 POWER-UP CONDITION High-impedance outputs High-impedance outputs 0xFF 0xFF High-impedance outputs High-impedance outputs PWM oscillator is disabled; O16 is static logic output O16 is high-impedance output; blink is disabled; global intensity is enabled O1, O0 are static logic outputs O3, O2 are static logic outputs O5, O4 are static logic outputs O7, O6 are static logic outputs O9, O8 are static logic outputs O11, O10 are static logic outputs O13, O12 are static logic outputs O15, O14 are static logic outputs ADDRESS CODE (hex) 0x02 0x03 0x06 0x07 0x0A 0x0B 0x0E REGISTER DATA D7 1 1 1 1 1 1 0 D6 1 1 1 1 1 1 0 D5 1 1 1 1 1 1 0 D4 1 1 1 1 1 1 0 D3 1 1 1 1 1 1 1 D2 1 1 1 1 1 1 1
LED /GPO
MAX6964
D1 1 1 1 1 1 1 1 D0 1 1 1 1 1 1 1
0x0F 0x10 0x11 0x12 0x13 0x14 0x15 0x16 0x17
0 1 1 1 1 1 1 1 1
0 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
0 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
0 1 1 1 1 1 1 1 1
0 1 1 1 1 1 1 1 1
4.
REGISTER ADDRESS CODE (hex) R/W CONFIGURATION 0 REGISTER DATA D7 D6 BLINK STATUS D5 OUTPUT O16 D4 D3 D2 GLOBAL INTENSITY D1 BLINK FLIP D0 BLINK ENABLE E 0 1 1 1
Write device configuration Read back device configuration Disable blink Enable blink Flip blink register (see text)
0 1 -- -- -- --
0x0F
X 0 X X X X
BLINK X X X X
O1 X X X X
O0 X X X X
0 X 0 X X X X
G X X X X
B X X 0 1
X = Don't care.
______________________________________________________________________________________
11
17/GPO
MAX6964
4. (
REGISTER
LED
ADDRESS CODE (hex) R/W
)
REGISTER DATA D7 D6 BLINK STATUS D5 OUTPUT O16 D4 D3 D2 GLOBAL INTENSITY D1 BLINK FLIP D0 BLINK ENABLE E X X 0 0 1 1 1 1 X X
CONFIGURATION
0
Write device configuration Read back device configuration Disable global intensity control--intensity is set by registers 0x10-0x17 for ports O0 through O15 when configured as outputs, and by D3-D0 of register 0x0E for output Enable global intensity control--intensity for all ports configured as outputs is set by D3-D0 of register 0x0E O16 output is low (blink is disabled) O16 output is high impedance (blink is disabled) O16 output is low during blink phase 0 O16 output is high impedance during blink phase 0 O16 output is low during blink phase 1 O16 output is high impedance during blink phase 1 Read back BLINK input pin status; input is low Read back BLINK input pin status; input is high
0 1
X 0
BLINK
O1
O0
0 X 0
G
B
--
X
X
X
X
X
0
X
-- 0x0F -- -- -- -- -- -- 1 1
X X X X X X X X X
X X X X X X X 0 1
X X X X X 0 1 X X
X 0 1 0 1 X X X X
X 0 0 0 0 0 0 X X
1 X X X X X X X X
X X X X X X X X X
X = Don't care.
5.
BLINK ENABLE FLAG E 0 BLINK FLIP FLAG B X 0 1 0 1 1 BLINK INPUT PIN X 0 1 0 1 BLINK FLIP FLAG EXOR BLINK INPUT PIN X 0 1 1 0 Enabled BLINK FUNCTION Disabled OUTPUT REGISTERS USED Blink phase 0 Blink phase 0 Blink phase 1 Blink phase 1 Blink phase 0
X = Don't care.
12 ______________________________________________________________________________________
176. 0
REGISTER Write outputs O7-O0 phase 0 Read back outputs O7-O0 phase 0 Write outputs O15-O8 phase 0 Read back outputs O15-O8 phase 0 R/W 0 1 0 1 ADDRESS CODE (hex) 0x02 0x03 REGISTER DATA D7 OP7 OP15 D6 OP6 OP14 D5 OP5 OP13 D4 OP4 OP12 D3 OP3 OP11 D2 OP2 OP10 D1
LED /GPO
MAX6964
D0 OP0 OP8
OP1 OP9
7.
1
REGISTER Write outputs O7-O0 phase 1 R/W 0 1 0 1 ADDRESS CODE (hex) 0x0A 0x0B REGISTER DATA D7 OP7 OP15 D6 OP6 OP14 D5 OP5 OP13 D4 OP4 OP12 D3 OP3 OP11 D2 OP2 OP10 D1 OP1 OP9 D0 OP0 OP8
Read back outputs O7-O0 phase 1 Write outputs O15-O8 phase 1 Read back outputs O15-O8 phase 1
8. PWM
APPLICATION All outputs static without PWM RECOMMENDED CONFIGURATION Set the master and global intensity register 0x0E to any value from 0x00 to 0x0F. The global intensity G bit in the configuration register is don't care. The output intensity registers 0x10 through 0x17 are don't care. Set the master and global intensity register 0x0E to any value from 0x10 to 0xFF. Clear global intensity G bit to zero in the configuration register to disable global intensity control. For the static outputs, set the output intensity value to 0xF. For the PWM outputs, set the output intensity value in the range 0x0 to 0xE. As above. Global intensity control cannot be used with a mix of static and PWM outputs, so write the individual intensity registers with the same PWM value. Set the master and global intensity register 0x0E to any value from 0x10 to 0xFF. Set global intensity G bit to 1 in the configuration register to enable global intensity control. The master and global intensity register 0x0E is the only intensity register used. The output intensity registers 0x10 through 0x17 are don't care.
A mix of static and PWM outputs, with PWM outputs using different PWM settings
A mix of static and PWM outputs, with PWM outputs all using the same PWM setting
All outputs PWM using the same PWM setting
______________________________________________________________________________________
13
17/GPO
MAX6964
MAX6964 LED PWM 32kHz PWM DAC . PWM . PWM . . 4PWM ( MAX6964 ( 11). PWM 12). 8 PWM
LED
PWM
1 14, 15 15) ( 11). 4. 16 16, . 16/16 . . . . PWM 17, 18 ( 12). 1/16 16/16 ( 13, PWM
MAX6964 MAX6964
PWM PWM
PWM 24016 12). 1 LED PWM . PWM ( , 15 0 9 0 . 16 0 LED 15/16 . 1 1/16 PWM . 16 ( 5) PWM ( 6). 0
PWM
BLINK ENABLE FLAG E BLINK FLIP FLAG B
( 1
5) ( 6 1
0 PWM 7). , . 10 /
x
0
BLINK PHASE REGISTERS
. LED PWM
BLINK INPUT
11. BLINK
ONE PWM PERIOD IS 240 CYCLES OF THE 32kHz PWM OSCILLATOR; A PWM PERIOD CONTAINS 15 MASTER INTENSITY TIMESLOTS
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
15 16 1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
1
2
EACH MASTER INTENSITY TIMESLOT CONTAINS 16 PWM CYCLES
12. PWM
14
______________________________________________________________________________________
17/O16
O16 PWM ( 17 PWM G PWM . PWM . PWM ( 8). PWM LED 50mA :
14 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 2
.
LED /GPO
MAX6964
MAX6964 .
________________________
411).
. 48 240 ( 4). 47V 220k . . CMOS .
.
LED
LED . LED
RLED = (VSUPPLY - VLED - VOL) / ILED
,
13.
.
1/15
RLED
6 7 8 9 10 11 12 13 14 15 1 2
.
LED LED (V). MAX6964 (A). 5V LED ILED LED
(). (V). (V).
14 15 1
2
3
4
5
VSUPPLY VLED VOL ILED
14.
.
14/15
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
.
LED 182
14mA 2.2V RLED = (5 - 2.2 - 0.25) / 0.014 =
.
NEXT MASTER INTENSITY TIMESLOT
15.
15/15
MASTER INTENSITY TIMESLOT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5
6
7
8
9 10 11 12 13 14 15 16
16.
(
)
1/16
MASTER INTENSITY TIMESLOT NEXT MASTER INTENSITY TIMESLOT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
17.
(
)
15/16
MASTER INTENSITY TIMESLOT CONTROL IS IGNORED
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
18.
(
)
16/16
______________________________________________________________________________________
15
17/GPO
MAX6964
50mA
LED 50mA 50mA . 6V 330mW
LED
2V TO 3.6V
. 55mA . O0-O7
5V 0.047F V+ SDA SCL BLINK RST O0 O1 O2 MMTBT4148 O3 O4 O5 O6
C SDA SCL I/O I/O
O8-O15 . O16 . O16 . MAX6964 ( 19). .
.
MAX6964
AD0
O7 O8 O9 O10 O11 O12 O13 O14
MAX6964 2V~3.6V 0.047F GND
. .
19.
GND
O15
9. PWM
OUTPUT (OR GLOBAL) INTENSITY SETTING 0x0 0x1 0x2 0x3 0x4 0x5 0x6 0x7 0x8 0x9 0xA 0xB 0xC 0xD 0xE 0xF
(
)
LED BEHAVIOR WHEN OUTPUT BLINK PHASE 0 REGISTER BIT = 0 (LED IS ON WHEN OUTPUT IS LOW) Lowest PWM intensity PWM DUTY CYCLE OUTPUT BLINK PHASE 0 REGISTER = 1 LOW TIME 15/16 14/16 13/16 Increasing PWM intensity 12/16 11/16 10/16 9/16 8/16 7/16 6/16 5/16 4/16 3/16 2/16 Highest PWM intensity Full intensity, no PWM (LED on continuously) 1/16 Static high impedance HIGH TIME 1/16 2/16 3/16 4/16 6/16 7/16 8/16 9/16 10/16 11/16 12/16 13/16 14/16 15/16 Static high impedance Lowest PWM intensity LED off continuously Increasing PWM intensity 5/16 LED BEHAVIOR WHEN OUTPUT BLINK PHASE 0 REGISTER BIT = 1 (LED IS ON WHEN OUTPUT IS LOW) Highest PWM intensity
PWM DUTY CYCLE OUTPUT BLINK PHASE 0 REGISTER BIT = 0 LOW TIME 1/16 2/16 3/16 4/16 5/16 6/16 7/16 8/16 9/16 10/16 11/16 12/16 13/16 14/16 15/16 Static low HIGH TIME 15/16 14/16 13/16 12/16 11/16 10/16 9/16 8/16 7/16 6/16 5/16 4/16 3/16 2/16 1/16 Static low
16
______________________________________________________________________________________
1710. PWM
OUTPUT (OR GLOBAL) INTENSITY SETTING
LED /GPO
MAX6964
(
PWM DUTY CYCLE OUTPUT BLINK PHASE X REGISTER BIT = 0 LOW TIME 1/16 2/16 3/16 4/16 5/16 6/16 7/16 8/16 9/16 10/16 11/16 12/16 13/16 14/16 15/16 Static low HIGH TIME 15/16 14/16 13/16 12/16 11/16 10/16 9/16 8/16 7/16 6/16 5/16 4/16 3/16 2/16 1/16 Static low
)
PWM DUTY CYCLE OUTPUT BLINK PHASE X REGISTER = 1 LOW TIME 15/16 14/16 13/16 12/16 11/16 10/16 9/16 8/16 7/16 6/16 5/16 4/16 3/16 2/16 1/16 HIGH TIME 1/16 2/16 3/16 4/16 5/16 6/16 7/16 8/16 9/16 10/16 11/16 12/16 13/16 14/16 15/16 Phase 0: LED on continuously Phase 1: LED off continuously Phase 0: LED off continuously Phase 1: LED on continuously Phase 0: LED on at high intensity Phase 1: LED on at low intensity Phase 0: LED on at low intensity Phase 1: LED on at high intensity Output is half intensity during both blink phases Phase 0: LED on at low intensity Phase 1: LED on at high intensity Phase 0: LED on at high intensity Phase 1: LED on at low intensity EXAMPLES OF LED BLINK BEHAVIOR (LED IS ON WHEN OUTPUT IS LOW) BLINK PHASE 0 REGISTER BIT = 0 BLINK PHASE 1 REGISTER BIT = 1 BLINK PHASE 0 REGISTER BIT = 1 BLINK PHASE 1 REGISTER BIT = 0
0x0 0x1 0x2 0x3 0x4 0x5 0x6 0x7 0x8 0x9 0xA 0xB 0xC 0xD 0xE 0xF
Static high Static high impedance impedance
______________________________________________________________________________________
17
17/GPO
MAX6964
11. O16
REGISTER
LED
ADDRESS CODE (hex) R/W
REGISTER DATA D7 MSB MASTER INTENSITY D6 D5 D4 D3 D2 D1 D0 LSB O16 INTENSITY M0 G3 G2 G1 G0
MASTER AND GLOBAL INTENSITY Write master and global intensity Read back master and global intensity Master intensity duty cycle is 0/15 (off); internal oscillator is disabled; all outputs will be static with no PWM Master intensity duty cycle is 1/15 Master intensity duty cycle is 2/15 Master intensity duty cycle is 3/15 -- Master intensity duty cycle is 13/15 Master intensity duty cycle is 14/15 Master intensity duty cycle is 15/15 (full) O/16 intensity duty cycle is 1/16 O/16 intensity duty cycle is 2/16 O/16 intensity duty cycle is 3/16 -- O/16 intensity duty cycle is 14/16 O/16 intensity duty cycle is 15/16 O/16 intensity duty cycle is 16/16 (static output, no PWM) 0 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0X0E
LSB MSB
M3
M2
M1
0 0 0 0 -- 1 1 1 -- -- -- -- -- -- --
0 0 0 0 -- 1 1 1 -- -- -- -- -- -- --
0 0 1 1 -- 0 1 1 -- -- -- -- -- -- --
0 1 0 1 -- 1 0 1 -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- 0 0 0 -- 1 1 1
-- -- -- -- -- -- -- -- 0 0 0 -- 1 1 1
-- -- -- -- -- -- -- -- 0 0 1 -- 0 1 1
-- -- -- -- -- -- -- -- 0 1 0 -- 1 0 1
18
______________________________________________________________________________________
1712.
REGISTER ADDRESS CODE (hex) R/W REGISTER DATA D7 MSB 0 1 -- -- -- -- -- -- -- 0X10 D6 D5 D4 D3 D2 D1
LED /GPO
MAX6964
D0 LSB
OUTPUTS O1, O0 INTENSITY Write output O1, O0 intensity Read back output O1, O0 intensity Output O1 intensity duty cycle is 1/16 Output O1 intensity duty cycle is 2/16 Output O1 intensity duty cycle is 3/16 -- Output O1 intensity duty cycle is 14/16 Output O1 intensity duty cycle is 15/16 Output O1 intensity duty cycle is 16/16 (static logic level, no PWM) Output O0 intensity duty cycle is 1/16 Output O0 intensity duty cycle is 2/16 Output O0 intensity duty cycle is 3/16 -- Output O0 intensity duty cycle is 14/16 Output O0 intensity duty cycle is 15/16 Output O0 intensity duty cycle is 16/16 (static logic level, no PWM)
LSB MSB
OUTPUT O1 INTENSITY O1I3 0 0 0 -- 1 1 1 O1I2 0 0 0 -- 1 1 1 O1I1 0 0 1 -- 0 1 1 O1I0 0 1 0 -- 1 0 1
OUTPUT O0 INTENSITY O0I3 -- -- -- -- -- -- -- O0I2 -- -- -- -- -- -- -- O0I1 -- -- -- -- -- -- -- O0I0 -- -- -- -- -- -- --
-- -- -- -- -- -- --
-- -- -- -- -- -- --
-- -- -- -- -- -- --
-- -- -- -- -- -- --
-- -- -- -- -- -- --
0 0 0 -- 1 1 1
0 0 0 -- 1 1 1
0 0 1 -- 0 1 1
0 1 0 -- 1 0 1
OUTPUTS O3, O2 INTENSITY Write output O3, O2 intensity Read back output O3, O2 intensity 0 1 0x11
MSB
LSB MSB
LSB
OUTPUT O3 INTENSITY O3I3 O3I2 O3I1 O3I0
OUTPUT O2 INTENSITY O2I3 O2I2 O2I1 O2I0
OUTPUTS O5, O4 INTENSITY Write output O5, O4 intensity Read back output O5, O4 intensity 0 1 0x12
MSB
LSB MSB
LSB
OUTPUT O5 INTENSITY O5I3 O5I2 O5I1 O5I0
OUTPUT O4 INTENSITY O4I3 O4I2 O4I1 O4I0
OUTPUTS O7, O6 INTENSITY Write output O7, O6 intensity Read back output O7, O6 intensity 0 1 0x13
MSB
LSB MSB
LSB
OUTPUT O7 INTENSITY O7I3 O7I2 O7I1 O7I0
OUTPUT O6 INTENSITY O6I3 O6I2 O6I1 O6I0
______________________________________________________________________________________
19
17/GPO
MAX6964
12.
REGISTER
LED
)
ADDRESS CODE (hex) R/W REGISTER DATA D7 MSB 0 1 0x14 D6 D5 D4 D3 D2 D1 D0 LSB
(
OUTPUTS O9, O8 INTENSITY Write output O9, O8 intensity Read back output O9, O8 intensity
LSB MSB
OUTPUT O9 INTENSITY O9I3 O9I2 O9I1 O9I0
OUTPUT O8 INTENSITY O8I3 O8I2 O8I1 O8I0
OUTPUTS O11, O10 INTENSITY Write output O11, O10 intensity Read back output O11, O10 intensity 0 1 0x15
MSB
LSB MSB
LSB
OUTPUT O11 INTENSITY O11I3 O11I2 O11I1 O11I0
OUTPUT O10 INTENSITY O10I3 O10I2 O10I1 O10I0
OUTPUTS O13, O12 INTENSITY Write output O13, O12 intensity Read back output O13, O12 intensity 0 1 0x16
MSB
LSB MSB
LSB
OUTPUT O13 INTENSITY O13I3 O13I2 O13I1 O13I0
OUTPUT O12 INTENSITY O12I3 O12I2 O12I1 O12I0
OUTPUTS O15, O14 INTENSITY Write output O15, O14 intensity Read back output O15, O14 intensity OUTPUT O16 INTENSITY 0 1 0x17
MSB
LSB MSB
LSB
OUTPUT O15 INTENSITY O15I3 O15I2 O15I1 O15I0
OUTPUT O14 INTENSITY O14I3 O14I2 O14I1 O14I0
See master, 016 register (Table 11).
____________________________
TOP VIEW
O16 1 RST 2 ADO 3 O0 4 O1 5 O2 6 O3 7 O4 8 O5 9 O6 10 O7 11 GND 12 24 V+ 23 SDA 22 SCL 21 BLINK
(
)
_________________________________
TRANSISTOR COUNT: 25,991 TECHNOLOGY: BiCMOS
MAX6964AEG
20 O15 19 O14 18 O13 17 O12 16 O11 15 O10 14 O9 13 O8
QSOP
20
______________________________________________________________________________________
17_________________________________________________________________________
.
LED /GPO
MAX6964
.
www.maxim-ic.com/packages
PACKAGE OUTLINE, QSOP .150", .025" LEAD PITCH
21-0055
E
1
1
______________________________________________________________________________________
21
QSOP.EPS
17/GPO
MAX6964
LED
(
.
____________________________________________________________________
.
)
www.maxim-ic.com/packages
PACKAGE OUTLINE 12, 16, 20, 24L THIN QFN, 4x4x0.8mm
21-0139
C
1
2
22
______________________________________________________________________________________
24L QFN THIN.EPS
17____________________________________________________________________
.
LED /GPO
MAX6964
(
.
)
www.maxim-ic.com/packages
PACKAGE OUTLINE 12, 16, 20, 24L THIN QFN, 4x4x0.8mm
21-0139
C
2
2
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 23 (c) 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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